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图片跨域问题？

阿里云的图片，例如"https://syx-hzy5200.oss-cn-shenzhen.aliyuncs.com/c17ed98cdb36..." (https://link.segmentfault.com/?enc=6QN%2B%2BzfixYwT98EkVUx7XQ%3D%3D.CrvjxgHMnBFplOy%2BAHVWZCPKa6Z7Cye21U8YqTAApi7IArGbab2SVpCZNIJA1ppxKBUFkvs4c9Wg81lABcavNH16iFBKg4F5x0UoVimaDS3%2BGCH%2F4MBQ8Hfn9hrVjSXl)(不同图片这个不一样c17ed98cdb36418498caf32f95c0666f)，前端项目中需要有一个需求是将url转图片代码是 const imageBlob = await fetch(urls, { mode: 'cors' }).then(res => res.blob()) 但是ccess to fetch at '"https://syx-hzy5200.oss-cn-shenzhen.aliyuncs.com/c17ed98cdb36..." (https://link.segmentfault.com/?enc=MX4wfwFwndlv3BtEamH6CQ%3D%3D.TU7bzQFv4wa3c1WmYxiDOoYucXsOr7%2FLTnRCdue0Kwd0soiLYJAIrODXMaEONJYxw70rWcKQpJhLmlA0V4s8rYbLLwFuArUx4oC%2FTrVPBnMJHTgXUY38qobclzOw1F0l)' from origin '"http://xxx" (https://link.segmentfault.com/?enc=762eZ%2BGZCkavViuyVmIgKg%3D%3D.7RH%2F2b%2BdvPZPsFaZPK42Gg%3D%3D)' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled. 报跨域问题，测试环境的时候让后端在阿里云那边加上了测试环境地址，使得跨域问题解决了，到正式环境也让后端一模一样的操作，但是依旧存在跨域问题，这应该怎么解决？

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销售经理537

有用过fabricjs的吗？他可以实现色阶、滤镜、反相、锐化这些功能吗？

我现在有个项目，现在实现下面的功能： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20240928/669bc60fb7498f255a2a1cef963b57d9.png) 色阶： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20240928/8df62bf4858ba0d0142a97f3acf222ab.png) 滤镜： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20240928/2691f4cd1038233a3d24101fc451fba5.png) 反相： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20240928/47d9c4944e594fe8e1a9ccda2c1ec351.png) 锐化： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20240928/acc069af6078492b24858bf893d622f8.png) 标注： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20240928/57a68fe654b85222077530d282da0302.png) 旋转这些功能，有人给我推荐了fabricjs，我试了一下，在标注测量，旋转等方面这个fabricjs还是可以的，但是在色阶：滤镜：反相：锐化：方面我看文档也比较少，这个能不能实现？或者有没有更方便的能实现上面功能的前端库？

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拽嘻嘻

前端对图片进行色阶、滤镜、反相、裁剪、锐化、旋转、标注测量这些操作用什么技术或框架比较好？

这是一个桌面软件的功能，我现在需要在前端web上实现，这一般用什么技术比较好？或有没有比较好用的前端库？ "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241003/73c71dc53002eaf796fdeac8832962f4.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241003/48e8e3ef1cef2ff860a5758f88cbad62.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241003/7c64fbfb0a59fe8fb27a1eee98e54c91.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241003/59972b8117f574329e5d160726adf613.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241003/ef35fc8d89123c547c3b7a365b232a59.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241003/aac0b3fcd8fdba678b97051c86fdc927.png)

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开挂思想家

有没有大佬知道这样的分段器效果如何实现？

"image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241107/c163042c0e4399a376a6e684ef0aaff4.png) "image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241107/b484602dbca73db7dd480cb79f0a30c6.png) 有没有大神知道这样的分段器效果如何实现？ "image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241107/c163042c0e4399a376a6e684ef0aaff4.png) "image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241107/b484602dbca73db7dd480cb79f0a30c6.png) 有没有大神知道这样的分段器效果如何实现？点击左侧按钮时右侧边框变为45度曲线，点击右侧反之，这个咋整？

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一只tomatoo

请问echarts怎么实现这种x轴？

请问这种x轴，怎么实现 "image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241031/d2c8cd4df3f02c4f298148b05ea5e73c.png) 我想到的只能用这种方式模拟出这个效果，不过位置会对不上 "image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241031/a3746ca9bddc53a5dc2ee2536e2c95f5.png)

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NKTDYD

如果把设计的png图片在保证效果的前题下存储空间尽量减少？

如果把设计的png图片在保证效果的前题下存储空间尽量减少？比如类似"https://p3.dcarimg.com/img/tos-cn-i-dcdx/f3aa2146a74d47e3ab48..." (https://link.segmentfault.com/?enc=ZARNTe40447BabqPNAsNeQ%3D%3D.EkZL3teiB%2FhRiVHpf6gBw7U5BK7Qbdtq1JrTqRkq3HU432%2B7vI%2Fd23Bkl7gRqnmAF4oITNT6BIV%2BBwoy1E120oLJ%2Bpw9tYLAuc4JWG8E%2BslFnpY7EoJktDrk0D0NOvxE)这种图，请专业大佬给指点一下比如用什么软件，什么样的步骤，感谢！！！

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老詹啊老詹

Flask读取MySQL数据库中的图片并返回给前端的步骤？

flask如何读取mysql数据库中的图片，并返回给前端呢？ "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241016/99ec353938722995d00dd639197f0ade.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241016/54cc53b440e5c57efd6313fb9687ecc0.png) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241016/692d9f940b740b8288870a83db3b9725.png) 得到提供的思路前端该如何请求还有服务器需要怎么样返回

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